低流量水平井油水两相流模拟试验研究

Experimental Study on Oil-water Two-phase Flow in Low Liquid Horizontal Wells

摘要: 在水平井的井筒(水平段)中，流体具有与直井不同的速度分布和介质分布，由于密度差异，在重力分离作用下，从上至下分别是以气、油、水的层状流流动为主要特征。因此，常规垂直井中心流生产测井仪器无法准确测得水平井下真实流态。为了解决水平井的生产测井问题，提高产液剖面测井解释精度，利用Sondex公司的新型阵列测井仪器MAPS (multiple array production suite)，进行了一系列水平井两相流模拟试验，为水平井两相流态的检测分析提供了先进的方案。

Abstract: In horizontal wellbore (horizontal section), fluid had velocity distribution and medium distribu-tion different from vertical well. Because of density difference, under the action of gravity separation, the stratified flow of gas, oil and water was the main characteristics from the top to bottom. Therefore, the conventional vertical well center flow production logging tool could not be used to measure the true flow pattern in the horizontal well. In order to solve the problem of production logging in horizontal wells and improve the precision of logging interpretation of fluid production profile in horizontal wells, a new array logging instrument MAPS from Sondex Company (multiple array production suite) is used, and a series of two-phase flow simulation tests in horizontal wells are carried out, which provide an advanced scheme for the detection and analysis of two-phase flow patterns in horizontal wells.